Finding the Fourth Proportional to 319,240,266.84, 440,551,373.40 and 172,562,550.84
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Solution
The fourth proportional to 319,240,266.84, 440,551,373.40 and 172,562,550.84 is: 238,136,214.84
Step by Step Solution
- Step 1: Write the proportion equation
319,240,266.84 : 440,551,373.40 = 172,562,550.84 : x - Step 2: Convert to fraction form
319,240,266.84/440,551,373.40 = 172,562,550.84/x - Step 3: Cross multiply
319,240,266.84x = 440,551,373.40 × 172,562,550.84 - Step 4: Simplify right side
319,240,266.84x = 76,022,668,769,969,328 - Step 5: Solve for x
x = 76,022,668,769,969,328/319,240,266.84 - Step 6: Final answer
x = 238,136,214.84
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.